.notgrides WybesH .') .J to soit99llo9 9d) al Aqsołod¶¶

THOMAS A. EDISON (ABOUT 1877) WITH HIS FIRST

PHONOGRAPH

Photograph. In the collection of L. C. Handy, Washington.

THE

AGE OF INVENTION

A CHRONICLE OF
MECHANICAL CONQUEST
BY HOLLAND THOMPSON

NEW HAVEN: YALE UNIVERSITY PRESS
TORONTO: GLASGOW, BROOK & CO.

LONDON: HUMPHREY MILFORD
OXFORD UNIVERSITY PRESS